DNSWHOIS.INFO - firstclass.is

Search for IP or hostnames:

firstclass.is checked at 2025-10-06T20:54:02.069Z 306ms 88/88/88 100% R:18

`firstclass.is`

NS	`ns1.xnet.is`
		A	185.248.120.75^{🇮🇸 IS-Netheimur}
			PTR	`cl4.xnet.is`
NS	`ns2.xnet.is`
		A	217.9.143.94^{🇮🇸 Vodafone Iceland}
			PTR	`ns2.xnet.is`
MX	`firstclass-is.mail.protection.outlook.com`
		A	2a01:111:f403:ca04::8 ^{🇮🇪 Microsoft}
			PTR	`mail-db5pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::f ^{🇮🇪 Microsoft}
			PTR	`mail-db7pr03cu00507.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09:: ^{🇳🇱 Microsoft}
			PTR	`mail-am3pr04cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::a ^{🇳🇱 Microsoft}
			PTR	`mail-as8pr05cu00202.inbound.protection.outlook.com`
		A	52.101.68.32^{🇮🇪 Microsoft}
			PTR	`mail-db3pr0202cu00200.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
A	217.9.143.30^{🇮🇸 Vodafone Iceland}

firstclass.is points to a single IP address: 217.9.143.30.

Other host names such as infuse.is, gongugreining.is, hundahotel.is, islandsnet.is and dansogjoga.is share IPs with firstclass.is.

Two name servers ns1.xnet.is and ns2.xnet.is handle the delegation for firstclass.is.

firstclass.is shares the same name server setup as other domains, for example gudrunardottir.com, hagur.is, heyrnarvernd.is, egg.is and lifsspor.is.

firstclass.is at least partially shares name servers with other domains, for example parketslipunislands.is, tron.is, fs.is, dv.is and gastec.is.

Host names with one IP number:

firstclass-is.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::8, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::, 2a01:111:f403:ca09::a, 52.101.68.32, 52.101.73.4, 52.101.73.11 and 52.101.73.15.

dbq